Design a Toys E-store + Create customized shipping module on Virtuemart

I currently have an e-commerce website at: [login to view URL] and am looking towards redesigning and incorporating it on a Joomla + Virtuemart platform. General IMPORTANT requirements needed for the site: 1. A custom module (editable & idiot-proof) for the shipping charges in my country (Singapore) to overseas depending on weight of item. 2. To be able to generate a custom invoice for self-collection of purchased items at my physical store. 3. Different manageable accounts for customers affecting price final price of items. (Wholesale 10% discount/Platinum 5%/Gold 3% etc) 4. Member's page with editable choice of delivery (COD/Airmail/Self collection), personal particulars and infomation of purchase history or current/pending orders/preorders. 5. SEO 6. Layout of site and pages MUST be done according to .doc file provided. Please look through the uploaded .doc file for more detailed requirements for the website. If you would like to take up this challenge, please bid and list me some works you've done before (preferbly on an e-commerce website), and extra BONUSES will be given for a job well done!